For all the chatter about the inanity of Twitter, ultimately it is a pretty amazing resource of what people are thinking and doing at any give time. And any time you hear ‘pretty amazing resource’, you can bet that people will try and monetize that somehow! Google was the first of the big search players to index Twitter results, and now they are introducing a timeline feature. While there are numerous ways to see what people are thinking right now, what the new timeline feature does is present users with a graphical chart representing how much people are talking about a subject over time. Clicking…